Synthesis and optical properties of the [2.2]paracyclophane-containing pi-conjugated polymer with a diacetylene unit

摘要

Novel through-sapce pi-conjugated polymer based on poly(p-phenylene-ethynylene)/poly(p-phenylenebutadiynylene) hybrids containing a [2.2]paracyclophane unit in the main chain was synthesized by copper-catalyzed alkyne coupling reaction. the structure of the polymer was supported by ~H NMR and IR spectra. The obtained polymer was soluble in common organic solvents such as THF, CH_2Cl_2, CHCl_3 and toluene. The number-average of molecular weight of the polymer was estimated to be 63000 by GPC. The polymer emitted a bluish green light in solution and in the solid state.